Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Browne, I W A"'
Autor:
Casadio, C., Blinov, D., Readhead, A. C. S., Browne, I. W. A., Wilkinson, P. N., Hovatta, T., Mandarakas, N., Pavlidou, V., Tassis, K., Vedantham, H. K., Zensus, J. A., Diamantopoulos, V., Dolapsaki, K. E., Gkimisi, K., Kalaitzidakis, G., Mastorakis, M., Nikolaou, K., Ntormousi, E., Pelgrims, V., Psarras, K.
Dark Matter (DM) halos with masses below $\sim10^{8}$ $M_{\odot}$, which would help to discriminate between DM models, may be detected through their gravitational effect on distant sources. The same applies to primordial black holes, considered as an
Externí odkaz:
http://arxiv.org/abs/2107.06896
Autor:
Marcha, M. J. M., Browne, I. W. A.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 507, Issue 1, October 2021
We find evidence for large-scale clustering amongst Fermi-selected BL Lac objects but not amongst Fermi-selected FSRQs. Using two-point correlation functions we have investigated the clustering properties of different classes of objects from the Ferm
Externí odkaz:
http://arxiv.org/abs/2105.06736
Autor:
Readhead, A. C. S., Ravi, V., Liodakis, I., Lister, M. L., Singh, V., Aller, M. F., Blandford, R. D., Browne, I. W. A., Gorjian, V., Grainge, K. J. B., Gurwell, M. A., Hodges, M. W., Hovatta, T., Kiehlmann, S., Lähteenmäki, A., McAloone, T., Max-Moerbeck, W., Pavlidou, V., Pearson, T. J., Peirson, A. L., Perlman, E. S., Reeves, R. A., Soifer, B. T., Taylor, G. B., Tornikoski, M., Vedantham, H. K., Werner, M., Wilkinson, P. N., Zensus, J. A.
PKS 1413+135 is one of the most peculiar blazars known. Its strange properties led to the hypothesis almost four decades ago that it is gravitationally lensed by a mass concentration associated with an intervening galaxy. It exhibits symmetric achrom
Externí odkaz:
http://arxiv.org/abs/2012.04045
Autor:
Wuensche, C. A., Reitano, L., Peel, M. W., Browne, I. W. A., Maffei, B., Abdalla, E., Radcliffe, C., Abdalla, F., Barosi, L., Liccardo, V., Mericia, E., Pisano, G., Strauss, C., Vieira, F., Villela, T., Wang, B.
The Baryon acoustic oscillations from Integrated Neutral Gas Observations (BINGO) telescope is a 40-m~class radio telescope under construction that has been designed to measure the large-angular-scale intensity of HI emission at 980--1260 MHz and hen
Externí odkaz:
http://arxiv.org/abs/1911.13188
Autor:
Peel, M. W., Wuensche, C. A., Abdalla, E., Anton, S., Barosi, L., Browne, I. W. A., Caldas, M., Dickinson, C., Fornazier, K. S. F., Monstein, C., Strauss, C., Tancredi, G., Villela, T.
The Baryon acoustic oscillations from Integrated Neutral Gas Observations (BINGO) telescope is a new 40-m class radio telescope to measure the large-angular-scale intensity of Hi emission at 980-1260 MHz to constrain dark energy parameters. As it nee
Externí odkaz:
http://arxiv.org/abs/1811.09464
Autor:
Biggs, A. D., Browne, I. W. A.
We have reanalysed the 1996/1997 VLA monitoring data of the gravitational lens system JVAS B0218+357 to produce improved total flux density and polarization variability curves at 15, 8.4 and 5 GHz. This has been done using improved calibration techni
Externí odkaz:
http://arxiv.org/abs/1802.10088
Autor:
Bigot-Sazy, M. -A., Dickinson, C., Battye, R. A., Browne, I. W. A., Ma, Y. -Z., Maffei, B., Noviello, F., Remazeilles, M., Wilkinson, P. N.
HI intensity mapping is an emerging tool to probe dark energy. Observations of the redshifted HI signal will be contaminated by instrumental noise, atmospheric and Galactic foregrounds. The latter is expected to be four orders of magnitude brighter t
Externí odkaz:
http://arxiv.org/abs/1507.04561
Autor:
Brown, M. L., Abdalla, F. B., Amara, A., Bacon, D. J., Battye, R. A., Bell, M. R., Beswick, R. J., Birkinshaw, M., Böhm, V., Bridle, S., Browne, I. W. A., Casey, C. M., Demetroullas, C., Enßlin, T., Ferreira, P. G., Garrington, S. T., Grainge, K. J. B., Gray, M. E., Hales, C. A., Harrison, I., Heavens, A. F., Heymans, C., Hung, C. L., Jackson, N. J., Jarvis, M. J., Joachimi, B., Kay, S. T., Kitching, T. D., Leahy, J. P., Maartens, R., Miller, L., Muxlow, T. W. B., Myers, S. T., Nichol, R. C., Patel, P., Pritchard, J. R., Raccanelli, A., Refregier, A., Richards, A. M. S., Riseley, C., Santos, M. G., Scaife, A. M. M., Schäfer, B. M., Schilizzi, R. T., Smail, I., Starck, J. -L., Szepietowski, R. M., Taylor, A. N., Whittaker, L., Wrigley, N., Zuntz, J.
We outline the prospects for performing pioneering radio weak gravitational lensing analyses using observations from a potential forthcoming JVLA Sky Survey program. A large-scale survey with the JVLA can offer interesting and unique opportunities fo
Externí odkaz:
http://arxiv.org/abs/1312.5618
Autor:
Jackson, Neal, Browne, I. W. A.
Unified schemes of radio sources, which account for different types of radio AGN in terms of anisotropic radio and optical emission, together with different orientations of the ejection axis to the line of sight, have been invoked for many years. Rec
Externí odkaz:
http://arxiv.org/abs/1211.5778
Autor:
Battye, R. A., Brown, M. L., Browne, I. W. A., Davis, R. J., Dewdney, P., Dickinson, C., Heron, G., Maffei, B., Pourtsidou, A., Wilkinson, P. N.
BINGO is a concept for performing a 21cm intensity mapping survey using a single dish telescope. We briefly discuss the idea of intensity mapping and go on to define our single dish concept. This involves a \sim 40 m dish with an array of \sim 50 fee
Externí odkaz:
http://arxiv.org/abs/1209.1041